G.f. A(x) satisfies A(x)^2 = 1 + 4*x*A(x)^6.

A245113

G.f. A(x) satisfies A(x)^2 = 1 + 4*x*A(x)^6.

Terms

    a(0) =1a(1) =2a(2) =22a(3) =340a(4) =6118a(5) =120060a(6) =2492028a(7) =53798888a(8) =1195684230a(9) =27175425004a(10) =628705751828

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